How to create functions in python: Get square of a number.
Lets look how to create functions in python. For example:- We will create two functions: 1. To say “Hello World” to the world. 2. To square a number and get...
Month: January 2019
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How to get maximum of 3 numbers : Usage of if elif and else in Python.
Today we will look at a sample program or python script to get maximum number out of a set of numbers say 3. Lets have a look at the program....
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How to import math library in Python and call its functions ?
In this post, we will look how to use a library in python and call its various functions. For example:- we can import all functions provided by math library using...
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How to take backup of docker container ?
In this post, we will look how to take backup of a docker container. We can take backup in two steps: a. First saving the container data into an image....
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Docker: How to save images & containers in a tar file and restore them on different machine ?
I. Playing with Docker Images 1. Take backup of an image $ docker images REPOSITORY TAG IMAGE ID CREATED SIZE mariadb 10.1 5a34bfc8f676 2 weeks ago 375MB phpmyadmin/phpmyadmin latest 15ca549393be...
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Part 6: Deploy LAMP Server with phpmyadmin using docker_compose file.
In this post, we will look how to use docker-compose.yml file to deploy multiple containers of an application. Setup LAMP Server ### Create directories and file structure $ touch docker-compose.yml...
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Part 5: Deployment of Container through Docker Compose File
In this part, we will look at an interesting example to deploy multiple containers just by docker compose file. We don’t need to do anything just need to write our...
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Solved: ERROR: Version in “./docker-compose.yml” is invalid & found character ‘\t’ that cannot start any token
In this post, we will look how to resolve two error messages that we can face while writing docker compose file. Error 1: found character ‘\t’ that cannot start any...
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Docker: How to ssh into a docker machine with IP ?
In this post, we will look how to do ssh into a docker machine directly and to use it as a VM machine. Ideally we do ssh into a docker...
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Part 4: Docker Machine, Swarm Introduction and implementation
1. Introduction Docker Swarm is an Orchestration tool(like kubernetes, or Apache Mesos.) to automate the administration of docker machines which in turn consists of containers & images. Docker Machine:- Sets...